Acidic Groups Functionalized Carbon Dots Capping Channels of a Proton Conductive Metal–Organic Framework by Coordination Bonds to Improve the Water-Retention Capacity and Boost Proton Conduction
| Autor: | Jin Zhang, Ru Zhang, Yangyang Liu, Ya-Ru Kong, Hong-Bin Luo, Yang Zou, Lu Zhai, Xiao-Ming Ren |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | ACS Applied Materials & Interfaces. 13:60084-60091 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.1c20884 |
| Popis: | Crystalline porous materials, such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), have been demonstrated to be versatile material platforms for the development of solid proton conductors. However, most crystalline porous proton conductors suffer from decreasing proton conductivity with increasing temperature due to releasing water molecules, and this disadvantage severely restricts their practical application in electrochemical devices. In this work, for the first time, hydrophilic carbon dots (CDs) were utilized to hybridize with high proton conductivity MOF-802, which is a model of MOF proton conductors, aiming to improve its water-retention capacity and thus enhance proton conduction. The resultant CDs@MOF-802 exhibits impregnable proton conduction with increasing temperature, and the proton conductivity reaches 10 |
| Databáze: | OpenAIRE |
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